skylight.

AFR84E Air France

Boeing 777 328ER · F-GZNS · CDG → SFO

· 1:40Quality 76low zoomside-onturned right 18°

3D replay

Software-steadied: the hops of the camera motor are smoothed out (plane wobble −64%). Download

Trace

Where the aircraft sat in the frame, second by second. Click the chart to jump the video there.

—FOV —az —el —pose —
Lock

Events

Tracking metrics

How well the camera kept the aircraft centred. Tap a metric for what it means and what good looks like.

Lockshare of the pass
87%
First lockfrom target selected
6.1 s
Centring, medianaz / el while locked
1.31° / 0.82°
Centring, 90th pctaz / el while locked
4.30° / 1.85°
Tightest field of viewhorizontal
10.8°
Time to 8°from first lock
—
Time to tightestfrom first lock
0.0 s
Time at telefield of view ≤ 5.5°
0.0 s
Jitter at teleaz / el, standard deviation
—
Swing at teleaz / el, peak to peak
—
Pan reversalsper 10 s at tele
—
Largest pan hopin any 1 s at tele
—
Largest tilt hopin any 1 s at tele
—
Pose error, mediancommand vs camera
0.91°
Largest correctionvision vs prediction
1.39°
Zoom steps
0

Aircraft & route

Flight
AFR84E
Registration
F-GZNS
Type
Boeing 777 328ER
Airline
Air France
From
CDG · Paris
To
SFO · San Francisco
Ground speed
278 kt
Altitude at closest
11,150 ft
Vertical rate
-64 ft/min
Category
A5
ICAO hex
3965b2

Pass geometry

Max elevation
69.8°
Elevation at start → end
35.7° → 17.8°
Azimuth at start → end
335° NNW → 140° SE
Closest-approach azimuth
49° NE
Minimum slant range
3.6 km
Heading at closest
140° SE
Aspect at closest
side-on (89°)
Turn
turned right 18°
Departure
No
Zenith pass
No
Dead-zone wrap
No
Duration
1:40 (100.1 s)
Lock
87%

Build & tuning

The tracker build that flew this pass and the live settings that mattered, so passes can be compared across changes.

Build
2026-10-13g — debanding (archive s2 + live shader)
Commit
181d1fa+wip
Node
v22.22.2
Camera
TONGVEO 20x PTZ · 1920×1080 @ 30 fps
Clip
50.5 MB · 101.0 s · offset -1.8 s
pursuit
velocity
maxLeadSec
3
panLatencySec
0.6
tiltLatencySec
0.4
rippleDeg
0.5
rippleTeleDeg
0.25
rateFloorDegPerDps
2.5
rateFloorMaxDeg
12
lockedSigmaDeg
0.35
correctionSlewDps
2.5
kp
1
ki
0.6

This clip and poster are © Skylight (Cameron Paczek): free for non-commercial use with credit to skylightceiling.com, not MIT. License